I had about a pound chunk of ham I needed to use up so I used a box grater and grated it up to use in mac and cheese but I still had some left over so.
1/4lb? of grated baked ham
shredded/grated cheddar cheese
salsa ( I used my home made ) https://www.instructables.com/id/Salsa-hack/
Tortillas , I like the flour ones but its YOUR sandwich, use what you like
Toaster oven or conventional oven